Can't install on Android

Hey ADE folks. New here, trying to get an acsm file to epub without much luck. It seems like many on this forum compatibility is an issue across the board, including Android. I can't install this program at all because it was made for an older version. Guessing y'all are understaffed? I don't understand why this isn't rolled into PDF reader. Seems almost like you don't want us to use this format.